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Cascade multilevel static synchronous compensator configuration for wind farms

journal contribution
posted on 2023-05-18, 11:04 authored by Shantha Jayasinghe Arachchillage, Vilathgamuwa, DM, Madawala, UK
Modulation and control of a cascade multilevel static synchronous compensator (STATCOM) configuration to improve the quality of voltage generated by wind power systems are presented. The proposed STATCOM configuration needs only four dc-link capacitors and 24 switches to synthesise nine-level operation. In addition to that, switching losses are further reduced by splitting the voltage source inverter of the STATCOM into two units called the ‘bulk inverter’ and the ‘conditioning inverter’. The high-power bulk inverter is operated at low frequency whereas the low-power conditioning inverter is operated at high frequency to suppress harmonics produced by the bulk inverter. Fluctuations at the point of common coupling voltage, caused by sudden wind changes, are suppressed by controlling reactive power of the STATCOM. Simulation and experimental results are presented to verify the efficacy of the proposed modulation and control techniques used in the STATCOM

History

Publication title

IET Power Electronics

Volume

4

Issue

5

Pagination

548-556

ISSN

1755-4543

Department/School

Australian Maritime College

Publisher

The Institution of Engineering and Technology

Place of publication

United Kingdom

Rights statement

Copyright 2011 The Institution of Engineering and Technology

Repository Status

  • Restricted

Socio-economic Objectives

Wind energy

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